Udi information is unknown.This remediation mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).A device history record (dhr) review was conducted which indicated all inspections were completed and no issues were noted during manufacture.A review of the manufacturing process was conducted by quality engineer (qe) in order to verify that there are no situations or practices that could create the event.The cuff assembly operation was reviewed; no discrepancies were found.Inflation line assembly operation was reviewed; no discrepancies were found.A product sample was received for evaluation.Visual inspection and function tests was performed.The returned sample was received in used condition without its original packaging.The sample for this complaint was sent to the manufacturing site, who carried out a full investigation into the reported issue based on the sample which returned.Original equipment manufacturer (oem) evaluated the returned device for further analysis and upon visual inspection observed one tear in the cuff.Inflation test was audited during thirty-two (32) units, in order to verify that the inflation test was properly performed; the inflation test was performed according to the test method stated in the manufacturing procedure; no deflated cuffs were detected during the thirty-two (32) units tested.The root cause was unable to be undetermined.Actions taken to mitigate the reported issue: no further actions required as the investigation shows the trend of cuff leakages declining after corrections actions were performed.
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